🏷️ Basic Information Identification Make: Aprilia Model: RS250 Model Designation: RS 250 Production Years Covered: 1995-2002 Codes Chassis Codes: AP8114, AP8114A 👋 Introduction Market Position Segment: High-performance 250cc two-stroke sportbike Era Significance: Represented a peak in lightweight, high-revving, two-stroke technology before stricter emissions regulations impacted the segment. Competitive Analysis Primary Competitors: Yamaha YZF-R6, Suzuki GSX-R600, Honda CBR600F (though generally more powerful, the RS250 competed on agility and raw performance feel). Key Features Engine Type: Liquid-cooled, V-twin, two-stroke Frame Type: Aluminum twin-spar perimeter frame Suspension Front: Showa upside-down telescopic forks Suspension Rear: Monoshock with adjustable linkage system Brakes: Dual front discs, single rear disc (typically Brembo) 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Fuel System: Yes Ignition System: Yes Cooling System: Yes Exhaust System: Yes Frame And Suspension: Yes Front Fork: Yes Rear Shock ABSorber: Yes Brakes: Yes Wheels And Tires: Yes Electrical System: Yes Lighting System: Yes Instrumentation: Yes Bodywork And Fairings: Yes Troubleshooting: Yes Maintenance: Yes Wiring Diagrams: Yes Torque Specifications: Yes Special Tools: Yes Page Count Estimated Page Count: 300+ Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine Management: Detailed diagnostics and repair for the Rotax V-twin engine, including power valve operation, carburetion (Mikuni TM34), and lubrication system. Chassis And Handling: Comprehensive coverage of frame components, steering head bearings, front fork (Showa upside-down) disassembly and reassembly, rear swingarm, and monoshock suspension adjustment and maintenance. Braking System: In-depth procedures for front and rear brake caliper maintenance, master cylinder overhaul, brake line replacement, and bleeding procedures. Includes specifications for Brembo components. Electrical And Ignition: Detailed schematics for the entire electrical system, including lighting, starting system, charging system (CDI ignition), instrumentation, and troubleshooting guides for common electrical faults. Procedures Included Engine Overhaul: Complete step-by-step instructions for engine disassembly, component inspection, piston and ring replacement, cylinder head service, crankshaft and connecting rod checks, and engine reassembly. Carburetor Tuning: Detailed guidance on cleaning, adjusting, and synchronizing the dual Mikuni TM34 carburetors, including jetting recommendations for various conditions and exhaust systems. Suspension Setup: Instructions for adjusting front fork preload, compression, and rebound damping, as well as rear shock preload, compression, and rebound damping to suit rider preference and riding conditions. Troubleshooting Guides: Systematic diagnostic procedures for identifying and resolving common mechanical and electrical issues, often presented in a flow-chart format. Technical Depth Depth: Comprehensive, covering routine maintenance to full engine rebuilds and advanced electrical diagnostics. Suitable for professional technicians and experienced home mechanics. 📊 Manual Specifications File Format Digital Format: PDF Searchable: Likely searchable if well-produced PDF Print Quality: High-resolution scans ensuring clarity of diagrams and text. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 90-degree V-twin, two-stroke Displacement: 249 cc (15.2 cu in) Bore X Stroke: 54.0 mm x 54.5 mm (2.13 in x 2.15 in) Valvetrain: Reed valve induction, Aprilia Power Dimention Control (APDC) exhaust power valves Compression Ratio: 7.5:1 (nominal) Lubrication: Autolube, separate oil injection system Performance Horsepower Claimed: Approx. 70 hp (52 kW) @ 11,000 rpm (depending on market and tune) Torque Claimed: Approx. 37 Nm (27 lb-ft) @ 10,000 rpm Fuel System Carburetion: 2 x Mikuni TM34SS flat-slide carburetors Fuel Type: Unleaded gasoline (minimum 95 RON recommended) Fuel Tank Capacity: 16 Liters (4.2 US Gallons) 🔧 Transmission Standard Type: 6-speed constant mesh Clutch: Wet multi-plate, cable-actuated Final Drive: Chain drive (520 O-ring type) Features Gear Ratios: Detailed in manual, typically close-ratio for performance Transmission Fluid Type: API GL-4, SAE 80W/90 gear oil (refer to manual for specific viscosity and capacity) 📐 Dimensions Exterior Length: Approx. 1980 mm (78.0 in) Width: Approx. 720 mm (28.3 in) Height: Approx. 1120 mm (44.1 in) Wheelbase: Approx. 1375 mm (54.1 in) Weights Dry Weight: Approx. 140 kg (308.6 lbs) Wet Weight: Approx. 152 kg (335.1 lbs) 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle - specific crash test ratings not typically applied as for cars) Active Features Braking System: Powerful dual front disc and single rear disc brakes for responsive stopping power. Tires: Performance-oriented tire fitment for optimal grip and handling. Passive Features Frame Construction: Rigid perimeter frame designed for stability and predictable handling. Ergonomics: Sportbike riding position with clip-on handlebars and rear-set footpegs. 💡 Technology Features Infotainment Infotainment System: None (basic analogue instrumentation) Driver Assistance Driver Assistance Features: None Connectivity Connectivity Options: None Engine Technology Power Delivery: Characterized by a sharp powerband and peaky performance, typical of high-strung two-strokes. Ignition System Type: CDI (Capacitor Discharge Ignition) with advanced timing curves managed by the ECU, often linked to power valve operation. 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual; typically every 3,000-5,000 km or annually. Spark Plug Replacement: Refer to manual; typically every 6,000-10,000 km. Air Filter Cleaning: Refer to manual; more frequent...